html{
    width: 100%;
    height: 100%;
    max-width: 750px;
    margin: 0 auto;
}
body{
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: url("../image/share1.jpg") no-repeat;
    background-size: 100% 100%;
}
.main{
    width: 100%;
    height: 100%;
    position: relative;
}
.main .main_code{
    width: 22%;
    height: 13%;
    position: absolute;
    top: 37%;
    left: 39%;
    background: #e94a47;
    border-radius: 10px;
}
.main img{
    width: 80%;
    height: 80%;
    margin: 10%;
}
.title{
    position: absolute;
    width: 100%;
    text-align: center;
    top: 67%;
    left: 0;
}
button{
    position: absolute;
    width: 80%;
    height: 40px;
    background: #f1e835;
    color: #fff;
    outline: none;
    border: none;
    border-radius: 10px;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}
